Erp Values; Faults Displayed On The Single Phase Outdoor Unit - Fujitsu Waterstage WOYG112LCTA Maintenance Document

Air to Water Heat Pump (Split integrated DHW type)
10 .3 Faults displayed
on the single phase outdoor unit
To access the electronic board, you must remove the
front (right-hand) facing from the outdoor unit.
Faults are coded by LED flashes.
When an error occurs:
- The LED "ERROR" (2) blinks.
- Press once on the switch "ENTER" (SW3).
- The "ERROR" (2) LED blinks several times depending
on the error's type (see below).
LED display
1 Flash
2 Flashes
3 Flashes
4 Flashes
5 Flashes
6 Flashes
7 Flashes
8 Flashes
9 Flashes
11 Flashes
12 Flashes
13 Flashes
14 Flashes
15 Flashes
16 Flashes
17 Flashes
18 Flashes
19 Flashes
20 Flashes
22 Flashes
- 72 -
Error contents
Serial forward transfer error.
Discharge thermistor error.
Pressure sensor error.
Heat-exchange thermistor (outlet) error.
Heat-exchange thermistor (intermediate) error.
Expansion valve thermistor error.
Outdoor temperature thermistor error.
Compressor thermistor error.
Heat sink thermistor error.
Discharge temperature protection (permanent stoppage).
Compressor temperature protection (permanent stoppage).
Current trip (permanent stoppage).
Detection of compressor position error (permanent stoppage).
Compressor start up error (permanent stoppage).
Fan motor 1 error (permanent stoppage).
Fan motor 2 error (permanent stoppage).
Inverter error.
Active filter error.
Low pressure abnormal.
Hydraulic unit abnormality condition.
(1)
(2) (3) (4)
SW1 SW2 SW3 SW4
figure 55 - Location of switches and LED
on single phase outdoor unit
Installation and operating manual "1768 - EN"
(5)
SW5
LED
and switches